DE3784874D1 - CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION. - Google Patents

CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION.

Info

Publication number
DE3784874D1
DE3784874D1 DE8787202463T DE3784874T DE3784874D1 DE 3784874 D1 DE3784874 D1 DE 3784874D1 DE 8787202463 T DE8787202463 T DE 8787202463T DE 3784874 T DE3784874 T DE 3784874T DE 3784874 D1 DE3784874 D1 DE 3784874D1
Authority
DE
Germany
Prior art keywords
input
difference
circuit arrangement
resistance
coupled together
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787202463T
Other languages
German (de)
Inventor
Winfrid Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE8787202463T priority Critical patent/DE3784874D1/en
Application granted granted Critical
Publication of DE3784874D1 publication Critical patent/DE3784874D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45085—Long tailed pairs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45362—Indexing scheme relating to differential amplifiers the AAC comprising multiple transistors parallel coupled at their gates and drains only, e.g. in a cascode dif amp, only those forming the composite common source transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45392—Indexing scheme relating to differential amplifiers the AAC comprising resistors in the source circuit of the AAC before the common source coupling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45466—Indexing scheme relating to differential amplifiers the CSC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45506—Indexing scheme relating to differential amplifiers the CSC comprising only one switch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45604—Indexing scheme relating to differential amplifiers the IC comprising a input shunting resistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45702—Indexing scheme relating to differential amplifiers the LC comprising two resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Networks Using Active Elements (AREA)

Abstract

The circuit uses two parallel difference amplifiers coupled together on the input and outpute sides exhibiting different amplification factors, at least that with the highest amplficiation factor being variable. The inputs of the dofference amplifier with the lowest amplification are coupled together via a resistance (611), with a second resistance (612) between one input of this difference amplfier and the corresponding input of the second difference amplifier. Pref. the two resistances (611,612) form part of a voltage divider (611,613) across an associated filter.
DE8787202463T 1986-12-13 1987-12-09 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION. Expired - Fee Related DE3784874D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787202463T DE3784874D1 (en) 1986-12-13 1987-12-09 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863642620 DE3642620A1 (en) 1986-12-13 1986-12-13 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION
DE8787202463T DE3784874D1 (en) 1986-12-13 1987-12-09 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION.

Publications (1)

Publication Number Publication Date
DE3784874D1 true DE3784874D1 (en) 1993-04-22

Family

ID=6316115

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19863642620 Withdrawn DE3642620A1 (en) 1986-12-13 1986-12-13 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION
DE8787202463T Expired - Fee Related DE3784874D1 (en) 1986-12-13 1987-12-09 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19863642620 Withdrawn DE3642620A1 (en) 1986-12-13 1986-12-13 CIRCUIT ARRANGEMENT WITH CONTROLLABLE AMPLIFICATION

Country Status (4)

Country Link
US (1) US4864248A (en)
EP (1) EP0271953B1 (en)
JP (1) JP2677570B2 (en)
DE (2) DE3642620A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63234612A (en) * 1987-03-23 1988-09-29 Nippon Telegr & Teleph Corp <Ntt> Differential amplifier circuit
JPS6450611A (en) * 1987-08-21 1989-02-27 Nec Corp Phase shifter
US4977378A (en) * 1989-09-08 1990-12-11 North American Philips Corp. Rapid-response differential amplifier with rail-to-rail input capability
GB9318836D0 (en) * 1993-09-10 1993-10-27 Plessey Semiconductors Ltd Amplifier arrangements
GB9318883D0 (en) * 1993-09-10 1993-10-27 Taylor David Godiver
US5587688A (en) * 1994-10-31 1996-12-24 Rockwell International Corp. Differential automatic gain-control amplifier having an enhanced range
WO1997043826A2 (en) * 1996-05-15 1997-11-20 Philips Electronics N.V. Gain control
JPH1093362A (en) * 1996-09-13 1998-04-10 Nec Corp Ota and variable current distribution and output circuit used for the same
US5892800A (en) * 1997-03-20 1999-04-06 Sigmatel, Inc. Data detection circuit having a pre-amplifier circuit
FR2770351A1 (en) * 1997-10-28 1999-04-30 Philips Electronics Nv HIGH GAIN AMPLIFIER HAVING LIMITED OUTPUT DYNAMIC
DE102004007635B4 (en) * 2004-02-17 2008-01-31 Infineon Technologies Ag Amplifier with switchable negative feedback
EP1630951B1 (en) * 2004-08-26 2008-03-05 STMicroelectronics S.r.l. Low noise amplifier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL162802C (en) * 1971-10-09 1980-06-16 Philips Nv INTEGRATED DIFFERENCE AMPLIFIER.
JPS53903B2 (en) * 1972-07-26 1978-01-12
DE3027071A1 (en) * 1980-07-17 1982-02-11 Philips Patentverwaltung Gmbh, 2000 Hamburg Reduced third harmonics distortion amplifier circuit - has two pairs of common emitter transistors with DC bias in fixed ratio and balanced or unbalanced options
JPS6327464Y2 (en) * 1980-08-09 1988-07-25
DE3522416A1 (en) * 1985-06-22 1987-01-02 Standard Elektrik Lorenz Ag Controllable broadband amplifier circuit
NL8600422A (en) * 1986-02-20 1987-09-16 Philips Nv TRANSCONDUCTION AMPLIFIER.

Also Published As

Publication number Publication date
EP0271953B1 (en) 1993-03-17
US4864248A (en) 1989-09-05
JP2677570B2 (en) 1997-11-17
EP0271953A3 (en) 1989-08-02
DE3642620A1 (en) 1988-06-23
JPS63164604A (en) 1988-07-08
EP0271953A2 (en) 1988-06-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH, 2233

8339 Ceased/non-payment of the annual fee